采用射频磁控溅射法制备了BaxSr1-xTiO3(简称BST)薄膜材料,研究了不同膜厚、晶粒尺寸的BST薄膜的介电系数温度特性(εr-T)、频率特性(εr-f)、电压特性(εr-U)及损耗的温度特性(tgδ -T)、频率特性(tgδ -f),找出了BST薄膜的非线性、损耗随尺度变化的规律.
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